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Find the effective area required to build such a capacitor

  1. Mar 19, 2008 #1
    1. The problem statement, all variables and given/known data

    One can buy 1 Farad capacitors which are only a few centimeters long. Speculate
    on how you can build such a capacitor. Assuming that you are using Strontium
    Titanate as the dielectric find the minimum gap for a maximum voltage of 5 volts.
    Find the effective area required to build such a capacitor. How can you put this area
    into a volume that is only a few centimeters

    2. Relevant equations
    C=Q/V
    C=EoA/d


    3. The attempt at a solution
    to find the minimum gap, i think we can start from dielectric strength??
     
    Last edited: Mar 19, 2008
  2. jcsd
  3. Mar 19, 2008 #2

    Tom Mattson

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    Aren't you forgetting something??
     
  4. Mar 20, 2008 #3
    i dont have any idea about how to solve that problem so a little help
     
  5. Mar 20, 2008 #4

    Tom Mattson

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    You need to start by looking at the equation for the capacitance of a capacitor with a dielectric. The equation you listed is for capacitance with no dielectric.
     
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